SD SERIES
Round and square swirl diffusers for installation in stages
Size 180 mm
Air flow level 10 – 25 l/s or 36 – 90 m³/h
The front panel is made of sheet steel and powder coated
For systems with variable and constant air flow
For raised floors and pressurized chambers
Installation in steps or in horizontal or sloping floors where there is no foot traffic
Rapid equalization of temperatures and reduction of air flow speed is achieved due to the high level of ejection
Low sound power level thanks to optimized air distribution inside the diffuser
Additional equipment and accessories
The diffuser front panel can be painted in RAL CLASSIC colors
Pipe branch
Jumper
Description
Swirl diffusers for installation in stages in air conditioning systems create swirling supply air for supply to rooms. The air flow obtained at the outlet of the diffuser allows one to achieve high ejection values, thereby quickly reducing the flow rate and leveling out the temperature difference between the supply air and the air in the room. Swirl diffusers for installation in stages supply air directly to the work area, as well as individually to the persons located in this area. The result is ventilation mixing in comfort zones and excellent air quality in the work area.
Swirl diffusers for installation in stages of the SD series have fixed guide vanes. It is possible to order various components to influence the air flow and adapt when the requirements for the room change. A spigot can be used to achieve an air supply parallel to the mounting surface, while a jumper is used to achieve an angled air supply. The air should be distributed in such a way that it does not blow into the feet of people sitting next to the diffuser. If step swirl diffusers are located under seats or vertically in steps between seats, an angled air supply is recommended. If diffusers are located in steps below seat level, parallel air supply is recommended. The temperature difference between the supply air and the room can range from –6 to +6 K.
SD-Q-LQ-S (supply air), sound power level and total pressure drop
| Standard size | V | Δpt | LWA | |
| л/с | м³/ч | Па | дБ(А) | |
180 | 10 | 36 | 8 | <15 |
15 | 54 | 18 | 24 | |
180 | 20 | 72 | 33 | 32 |
25 | 90 | 51 | 39 | |
SD-Q-LQ-T (supply air), sound power level and total pressure drop
| Standard size | V | Δpt | LWA | |
| л/с | м³/ч | Па | дБ(А) | |
180 | 10 | 36 | 3 | <15 |
15 | 54 | 7 | 21 | |
180 | 20 | 72 | 12 | 32 |
25 | 90 | 19 | 40 | |
SD-Q-LR-S, SD-R-LR-S (supply air), sound power level and total pressure drop
| Standard size | V | Δpt | LWA | |
| л/с | м³/ч | Па | дБ(А) | |
180 | 10 | 36 | 9 | <15 |
15 | 54 | 21 | 25 | |
180 | 20 | 72 | 38 | 34 |
25 | 90 | 59 | 41 | |
① Diffuser front panel
② Center connection screw
③Decorative cap
④ Seal
Optional
⑤ Connection
⑥ Wood screw (3 screws come with the pipe)
⑦ Jumper